The significant figure 2.00 has to do with the certainty of a measurement.
The 2 is significant.
200 Explanation: 2 is the one significant figure. The zeros are not significant. Round up because it is closer to 200 than to 100.
It is 200
The greatest is 2 for 200 and altogether there are 5 significant figures.
200
The 2 is significant.
It is 200 rounded to one significant figure
200 Explanation: 2 is the one significant figure. The zeros are not significant. Round up because it is closer to 200 than to 100.
It is 200
200
The greatest is 2 for 200 and altogether there are 5 significant figures.
200
It is then 30,000 rounded to 1 significant figure
200
(if there is to be one significant figure) 2 * 102(if there are to be two significant figures) 2.0 * 102 (if there are to be three significant figures) 2.00 * 102
Three (3). Rules for significant figures: 1. Leading zeros are never significant. Leading zeros are ones that come before any other digit, such as the first 0 in 0.1 2. Non-zero digits are always significant. 3. Zeros between two non-zero digits are always significant. In 202, the 0 is significant because of this. 4. Trailing zeros are significant if and only if there is a decimal point. For example, 200 has 1 significant figure, but 200. has 3.
The answer depends on the accuracy ot your "eighty percent"!269 * 0.8000 = 215.2 ( Four significant figures )If the "80 percent" is accurate to three significant figures (should have been written 80.0%): 215If the "80 percent" is only accurate to two significant figures: 220or if the "80 percent" is only accurate to one significant figure: 200